params = Ext.apply(params || {},
{
    // Default params
    matCode: this.getItem('txtMatCode').getValue(),
    matVer: this.getItem('cdvMatVer').getValue()
});

var store = this.getStore('ProdFlowList');
if (!store) {
    return false;
}

store.getProxy().extraParams = params;
if (store.loadPage) {
    store.loadPage(1, options);
} else {
    store.load(options);
}